gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule
Summary
| CVE | CVE-2026-40034 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-26 15:16:35 UTC |
| Updated | 2026-05-28 18:16:32 UTC |
| Description | gix-submodule before 0.29.0 (gitoxide before 0.5.21, gix before 0.84.0) incorrectly validates the update field in .gitmodules, allowing attackers to bypass the CommandForbiddenInModulesConfiguration guard when a submodule has been initialized with only partial configuration in .git/config. An attacker can inject arbitrary shell commands via the update field in .gitmodules that will be executed when Submodule::update() is called on a previously-initialized submodule, enabling remote code execution. |
Risk And Classification
Primary CVSS: v4.0 8.5 HIGH from [email protected]
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.000190000 probability, percentile 0.052330000 (date 2026-06-02)
Problem Types: CWE-77 | CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 8.5 | HIGH | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 7.3 | HIGH | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
PassiveConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Gitoxide | Gitoxide | affected 0.5.21 semver | Not specified |
| CNA | Gitoxide | Gitoxide | unaffected 0.5.21 semver | Not specified |
| CNA | Gitoxide | Gix-submodule | affected 0.29.0 semver | Not specified |
| CNA | Gitoxide | Gix-submodule | unaffected 0.29.0 semver | Not specified |
| CNA | Gitoxide | Gix | affected 0.84.0 semver | Not specified |
| CNA | Gitoxide | Gix | unaffected 0.84.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd0... | [email protected] | github.com | |
| red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP | [email protected] | red.anthropic.com | |
| github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | github.com | |
| github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51... | [email protected] | github.com | |
| www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-... | [email protected] | www.vulncheck.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.